This data property quantifies the epistemological reliability of a component's role within a specific causal relationship. It represents domain expert assessment of how well-supported the theoretical or empirical basis is for including this particular entity as a causal factor or outcome. The decimal value reflects the strength of evidence from sociological research, ranging from speculative theoretical connections to well-established empirical relationships. This property enables systematic documentation of uncertainty and confidence levels in complex sociological models, allowing researchers to distinguish between core theoretical claims and more tentative propositions. It facilitates meta-analysis of causal knowledge by providing explicit measures of evidential support for different aspects of sociological relationships.